CN111891877A - Rolling guide shoe capable of changing tire width and backpack type elevator - Google Patents
Rolling guide shoe capable of changing tire width and backpack type elevator Download PDFInfo
- Publication number
- CN111891877A CN111891877A CN202010785588.1A CN202010785588A CN111891877A CN 111891877 A CN111891877 A CN 111891877A CN 202010785588 A CN202010785588 A CN 202010785588A CN 111891877 A CN111891877 A CN 111891877A
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- roller
- guide shoe
- center
- amplitude value
- coating layer
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- 238000005096 rolling process Methods 0.000 title claims abstract description 21
- 239000011247 coating layer Substances 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 6
- 238000005253 cladding Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000004451 qualitative analysis Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
- B66B7/048—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes including passive attenuation system for shocks, vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
- B66B7/046—Rollers
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention relates to the technical field of elevators, in particular to a rolling guide shoe capable of changing the tire width and a knapsack type elevator, wherein the rolling guide shoe comprises: a guide shoe base; the first roller is arranged on one end surface of the guide shoe seat, and the circumferential surface of the first roller comprises a first coating layer; the second roller is arranged on the other end face of the guide shoe seat opposite to the first roller, and the circumferential surface of the second roller comprises a second coating layer; the width of the first coating layer is larger than that of the second coating layer, so that a first deformation generated after the first roller is stressed is converted into a first amplitude value at the car through a physical principle, and a second deformation generated after the second roller is stressed is converted into a second amplitude value at the car through the physical principle, wherein the first amplitude value is the same as or close to the second amplitude value. Has the advantages that: the vibration and noise phenomena caused by the surface deformation of the first roller and the second roller due to long-term parking of the elevator can be effectively reduced.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a rolling guide shoe capable of changing the tire width and a knapsack type elevator.
Background
The general backpack type elevator is arranged in a villa, is a structure different from a conventional elevator, and is characterized in that the utilization rate of a shaft way can be improved. The general knapsack elevator can generate larger moment to act on the guide shoe seat due to the unbalance of the car, and the car of the conventional elevator is almost in a balanced state, and the force acting on the guide shoe seat is small and only plays a role in guiding. Thus, the rollers of a rucksack elevator are typically heavily loaded rollers, while the rollers of a conventional elevator are typically lightly loaded rollers.
Because the knapsack formula elevator stops not using for a long time, the coating of two gyro wheels can be squashed to a certain extent, consequently resumes the original state of gyro wheel and needs the operation of knapsack formula elevator for a long time. When the knapsack elevator is used again after being stopped for a long time, the flat parts of the coating layers of the two rollers are not restored, so that the knapsack elevator generates an eccentric wheel phenomenon during operation, and periodic vibration and noise occur. In order to solve the eccentric wheel phenomenon, in the prior art, a seesaw structure and equidistant large and small idler wheels are generally adopted for dealing with the vibration, and the vibration of the backpack type elevator is effectively reduced by utilizing the characteristic that two idler wheels with different diameters have phase difference, so that the two-wheel flattening part of the guide shoe seat cannot appear simultaneously again or can appear again after a long time. However, the deformation of the two rollers caused by stress is different, and then the roller with large deformation generates large vibration on the rotating shaft through the lever principle, and the roller with small deformation generates small vibration on the rotating shaft through the lever principle, so that the vibration generated by the roller with large deformation is known to be the main reason for influencing the vibration of the backpack type elevator through the vibration principle, and then the vibration and noise of the backpack type elevator are increased.
Disclosure of Invention
To solve the above problems in the prior art, a rolling guide shoe and a backpack elevator with a variable tread width are provided.
The specific technical scheme is as follows:
the invention provides a rolling guide shoe capable of changing tire width, which comprises:
a guide shoe base;
the first roller is arranged on one end face of the guide shoe seat, and the circumferential surface of the first roller comprises a first coating layer;
the second roller is arranged on the other end face of the guide shoe seat opposite to the first roller, and the circumferential surface of the second roller comprises a second coating layer;
the width of the first coating layer is larger than that of the second coating layer, so that a first deformation generated after the first roller is stressed is converted into a first amplitude value at the car through a physical principle, and a second deformation generated after the second roller is stressed is converted into a second amplitude value at the car through the physical principle, wherein the first amplitude value is the same as or close to the second amplitude value.
Preferably, the guide shoe further comprises a rotating shaft, the rotating shaft is disposed between the first roller and the second roller, and a distance from a center of the rotating shaft to a center of the first roller is equal to a distance from the center of the rotating shaft to a center of the second roller, so that an acting force between the first roller and the guide shoe is equal to an acting force between the second roller and the guide shoe.
Preferably, the diameter of the first roller is smaller than the diameter of the second roller.
Preferably, the first coating layer is made of polyurethane and/or rubber;
the second coating layer is made of polyurethane and/or rubber.
Preferably, the circumference of the second roller has no multiple relation with the circumference of the first roller.
Preferably, the physical principle is a lever principle.
Preferably, the calculation formula of the first amplitude value is:
derived from the formulas (1) and (2)
Wherein A is1Representing a first amplitude value;
L2representing a distance from a center of the second roller to a center of the rotation axis;
H1representing a first amount of deformation;
l represents the distance from the center of the first roller to the center of the second roller.
Preferably, the calculation formula of the second amplitude value is:
derived from the equations (4) and (5)
Wherein A is2Representing a second amplitude value;
L1representing a distance from a center of the first wheel to a center of the rotation axis;
H2represents a second deformation amount;
l represents the distance from the center of the first roller to the center of the second roller.
The invention also provides a backpack type elevator, which comprises the rolling guide shoe.
The technical scheme has the following advantages or beneficial effects: the width through setting up first coating is greater than the width of second coating for the first deflection that produces after the first gyro wheel atress is the same or is close with the second deflection that produces after the second gyro wheel atress, can slow down the elevator effectively because long-term parking leads to vibration and noise phenomenon that first gyro wheel and second gyro wheel surface deformation arouse.
Drawings
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the invention.
Fig. 1 is a schematic structural view of a rolling guide shoe according to an embodiment of the present invention;
fig. 2 is a schematic view showing the operation of the first roller and the second roller after the long-term parking of the rucksack-type elevator according to the embodiment of the present invention;
FIG. 3 is a graph of experimental data relating force and deflection for three rollers of the same width and different diameters in accordance with an embodiment of the present invention;
fig. 4 is a schematic view showing the operation of the first roller when the backpack type elevator according to the embodiment of the present invention is operated again after being parked for a long time;
fig. 5 is a schematic view showing the operation of the second roller when the backpack type elevator according to the embodiment of the present invention is operated again after being parked for a long time.
The above reference numerals denote descriptions:
a guide shoe base 1; a first roller 2; a first cladding layer 20; (ii) a A second roller 3; a second cladding layer 30; the shaft 4 is rotated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The present invention provides a rolling guide shoe for changing a tread width, as shown in fig. 1, wherein the rolling guide shoe comprises:
a guide shoe base 1;
a first roller 2 installed at one end surface of the guide shoe 1, the circumferential surface of the first roller 2 including a first coating layer 20;
a second roller 3 installed at the other end surface of the guide shoe 1 opposite to the first roller 2, the circumferential surface of the second roller 3 including a second coating layer 30;
the width of the first coating layer 20 is greater than that of the second coating layer 30, so that a first deformation amount generated after the first roller 2 is stressed is converted into a first amplitude value at the car through a physical principle, and a second deformation amount generated after the second roller 3 is stressed is converted into a second amplitude value at the car or is close to the first amplitude value through the physical principle.
The shoe guide shoe comprises a first roller 2, a second roller 3 and a rotating shaft 4, wherein the rotating shaft 4 is arranged between the first roller 2 and the second roller 3, and the distance from the center of the rotating shaft 4 to the center of the first roller 2 is equal to the distance from the center of the rotating shaft 4 to the center of the second roller 3, so that the acting force between the first roller 2 and the shoe guide base 1 is equal to the acting force between the second roller 3 and the shoe guide base 1.
In the prior art, when the distance between the center of the rotating shaft 4 and the center of the first roller 2 and the distance between the center of the rotating shaft 4 and the center of the second roller 3 are set to be equal, it can be known that the acting forces exerted on the first roller 2 and the second roller 3 are the same, the contact area between the first roller 2 and the guide shoe base 1 is smaller, and the contact area between the second roller 3 and the guide shoe base 1 is larger, so that qualitative analysis can be known that, when the elevator is parked for a long time, the covering layers of the first roller 2 and the second roller 3, which are respectively contacted with the guide shoe base 1, are deformed under the action of unbalanced load of the elevator car, as shown in fig. 2, the first deformation amount generated by the first roller 2 is larger than the second deformation amount generated by the second roller 3, and further, the first roller 2 and the second roller 3 can generate different-sized vibrations on the rotating shaft 4 to influence the operation of the elevator.
In this example, the data obtained by performing experiments using three rollers having different diameters but the same width of the coating layer are shown in fig. 3, with the abscissa representing: the force F, in newton/N, and the ordinate represents the varying width b of the coating, in millimeters/mm. In the figure, the diameters are 70mm, 100mm and 125mm respectively represented by high-low oblique lines, when the distance between the center of the rotating shaft 4 and the center of the second roller 3 is equal to the distance between the center of the rotating shaft 4 and the center of the first roller 2, in other words, the acting forces exerted on the first roller 2 and the second roller 3 are equal, and under the condition that the widths of the coating layers of the rollers with different diameters are the same, the smaller the diameter of the roller is, the larger the width change of the coating layer after the acting force is, and the larger the corresponding deformation amount is. For example, when the coating of three rollers of different diameters is subjected to a force of 175 × 10N, it is evident from fig. 3 that the width of the coating of a roller of 70mm diameter varies the most, and thus the deformation thereof is the greatest, and the width of the coating of a roller of 125mm diameter varies the least, and the deformation thereof is the smallest. Therefore, experiments prove that the experimental data in the embodiment are consistent with the qualitative analysis of the technical scheme.
Therefore, in the embodiment, the vibration and noise phenomena caused by the deformation of the roller surface are reduced by changing the tire width, that is, the width of the first coating layer 20 of the first roller 2 is increased, so that the width of the first coating layer 20 of the first roller 2 is greater than the width of the second coating layer 30 of the second roller 3, so that the stressed area of the first coating layer 20 and the guide shoe base 1 is greater than that of the second coating layer 20 and the guide shoe base 1, and further, under the condition that the acting force between the first roller 2 and the guide shoe base 1 is equal to that between the second roller 3 and the guide shoe base 1, the first deformation amount generated by the first roller 2 is equal to or similar to the second deformation amount generated by the second roller 3, so that the first deformation amount and the second deformation amount generated by the first roller 2 and the second roller 3 after being stressed are respectively calculated to be the same as or similar to the first amplitude value and the second amplitude value at the car through a physical principle, thereby can slow down the vibration and the noise phenomenon that the first gyro wheel and second gyro wheel surface deformation arouse owing to long-term parking of knapsack formula elevator effectively.
The first roller 2 and the second roller 3 in this embodiment further include one or more bearings and a metal or non-metal hub from the inside to the outside of the center of the circle, respectively, and the first cladding 20 or the second cladding 30 is disposed on the outer surface of the hub.
In addition, in the present embodiment, the width of the first coating layer 20 of the first roller 2 is obtained by the following calculation formula,
S1＝a1×b1； (1)
S2＝a2×b2； (2)
S1＝S2； (3)
by the above formulas (1), (2), (3)Can derive
Wherein S is1The stress area between the first roller 2 and the guide shoe base 1 is shown;
a1a value representing the length of contact between the first roller 2 and the shoe guide 1;
b1represents the width value of the first coating 20 of the first roller 2;
S2the stress area between the second roller 3 and the guide shoe base 1 is shown;
a2a value representing the length of contact between the second roller 3 and the shoe 1;
b2represents the width value of the second coating layer 30 of the second roller 3;
further, from the above formula (4), it can be seen that the width of the corresponding first coating layer 20 can be calculated by the width of the second coating layer 30 of the second roller 3, and further, the final width b of the first coating layer 20 can be obtained by increasing the corresponding width to the basic width of the first coating layer 201。
In addition, the width b of the first clad layer 20 is defined as1Is a calculated theoretical value, while the actual value is near the theoretical value, which can be determined by roller pressure experiments.
In a preferred embodiment, the diameter of the first roller 2 is smaller than the diameter of the second roller 3.
Specifically, according to actual setting requirements, the first roller 2 and the second roller 3 are set to have different diameters, wherein the diameter of the first roller 2 is smaller than that of the second roller 3, so that the contact areas between the first roller 2 and the third roller 3 and the guide shoe 1 are different.
In a preferred embodiment, the first coating layer 20 is made of polyurethane and/or rubber;
the second coating layer 30 is made of polyurethane and/or rubber.
Specifically, the first coating layer 20 and the second coating layer 30 may be made of a flexible polyurethane material and/or a rubber material.
In a preferred embodiment, the circumference of the second roller 3 does not have a multiple of the circumference of the first roller 2.
Specifically, by setting the circumference of the second roller 3 to have no multiple relation with the circumference of the first roller 2, for example, by setting the diameter of the second roller 3 to be 100mm, the circumference of the corresponding second roller is 314mm, and the diameter of the first roller 2 is 70mm, the circumference of the corresponding first roller 2 is 219.8mm, so that the probability that the squashed portions generated after the first roller 2 and the second roller 3 respectively contact the shoe guide 1 are simultaneously present at the same position again is reduced.
In a preferred embodiment, the physical principle is the lever principle.
Specifically, the physical principle in the above technical solution is a lever principle, and a first amplitude value corresponding to a first deformation generated after the first roller 2 is stressed and a second amplitude value corresponding to a first deformation generated after the second roller 3 is stressed can be calculated through the lever principle.
In a preferred embodiment, the first amplitude value is calculated by the formula:
derived from the formulas (1) and (2)
Wherein A is1Representing a first amplitude value;
L2represents a distance from the center of the second roller to the center of the rotation axis;
H1representing a first amount of deformation;
l represents the distance from the center of the first roller to the center of the second roller.
Specifically, when the distance from the center of the rotating shaft 4 to the center of the first roller 2 in the above-described technical solution is equal to the distance from the center of the rotating shaft 4 to the center of the second roller 3, it can be known from the above equation (3) that the magnitude of the first amplitude value depends on the magnitude of the first deformation amount.
As shown in fig. 4, when the elevator is operated again after being parked for a long time and the first roller 2 is contacted with the shoe guide 1 at a long-term pressed position, the first deformation amount generated by the first roller 2 can be calculated by the above formula (3) and converted into the first amplitude value at the rotating shaft 4 by the lever principle.
In a preferred embodiment, the second amplitude value is calculated by the formula:
derived from the equations (4) and (5)
Wherein A is2Representing a second amplitude value;
L1represents a distance from a center of the first roller to a center of the rotation axis;
H2represents a second deformation amount;
l represents the distance from the center of the first roller to the center of the second roller.
Specifically, when the distance from the center of the rotating shaft 4 to the center of the first roller 2 in the above-described technical solution is equal to the distance from the center of the rotating shaft 4 to the center of the second roller 3, it can be known from the above equation (6) that the magnitude of the second amplitude value depends on the magnitude of the second deformation amount.
As shown in fig. 5, when the elevator is operated again after being parked for a long time and the second roller 3 is contacted with the shoe guide 1 at a long-term pressed position, the second deformation amount generated by the second roller 3 can be calculated by the above formula and converted into a second amplitude value at the rotating shaft 4 by the principle of leverage.
The invention also provides a backpack type elevator, which comprises the rolling guide shoe.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. A rolling guide shoe for changing a tread width, comprising:
a guide shoe base;
the first roller is arranged on one end face of the guide shoe seat, and the circumferential surface of the first roller comprises a first coating layer;
the second roller is arranged on the other end face of the guide shoe seat opposite to the first roller, and the circumferential surface of the second roller comprises a second coating layer;
the width of the first coating layer is larger than that of the second coating layer, so that a first deformation generated after the first roller is stressed is converted into a first amplitude value at the car through a physical principle, and a second deformation generated after the second roller is stressed is converted into a second amplitude value at the car through the physical principle, wherein the first amplitude value is the same as or close to the second amplitude value.
2. The rolling guide shoe of claim 1, further comprising a rotating shaft disposed between the first roller and the second roller, and wherein a distance from a center of the rotating shaft to a center of the first roller is equal to a distance from the center of the rotating shaft to a center of the second roller, such that a force between the first roller and the guide shoe is equal to a force between the second roller and the guide shoe.
3. The rolling guide shoe of claim 1 wherein the diameter of the first roller is less than the diameter of the second roller.
4. The rolling guide shoe of claim 1 wherein the first coating is a polyurethane and/or rubber material;
the second coating layer is made of polyurethane and/or rubber.
5. The rolling guide shoe of claim 1, wherein the circumference of the second roller is not a multiple of the circumference of the first roller.
6. The rolling guide shoe of claim 1 wherein the physical principle is a lever principle.
7. The rolling guide shoe of claim 1 wherein the first amplitude value is calculated by the formula:
derived from the formulas (1) and (2)
Wherein A is1Representing a first amplitude value;
L2representing a distance from a center of the second roller to a center of the rotation axis;
H1representing a first amount of deformation;
l represents the distance from the center of the first roller to the center of the second roller.
8. The rolling guide shoe of claim 1 wherein the second amplitude value is calculated by the formula:
derived from the equations (4) and (5)
Wherein A is2Representing a second amplitude value;
L1representing a distance from a center of the first wheel to a center of the rotation axis;
H2represents a second deformation amount;
l represents the distance from the center of the first roller to the center of the second roller.
9. A rucksack elevator, characterized in that it comprises a rolling guide shoe according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010785588.1A CN111891877B (en) | 2020-08-06 | 2020-08-06 | Rolling guide shoe capable of changing tire width and knapsack type elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010785588.1A CN111891877B (en) | 2020-08-06 | 2020-08-06 | Rolling guide shoe capable of changing tire width and knapsack type elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111891877A true CN111891877A (en) | 2020-11-06 |
| CN111891877B CN111891877B (en) | 2024-02-06 |
Family
ID=73245527
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010785588.1A Active CN111891877B (en) | 2020-08-06 | 2020-08-06 | Rolling guide shoe capable of changing tire width and knapsack type elevator |
Country Status (1)
| Country | Link |
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| CN (1) | CN111891877B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10291750A (en) * | 1997-04-16 | 1998-11-04 | Mitsubishi Electric Corp | Elevator device |
| US6482140B1 (en) * | 1999-12-08 | 2002-11-19 | Tashico Corporation | Roller and method of producing the same |
| CN201068358Y (en) * | 2007-05-25 | 2008-06-04 | 苏州江南嘉捷电梯股份有限公司 | Elevator rolling wheel guiding boot |
| WO2012166097A1 (en) * | 2011-05-27 | 2012-12-06 | Otis Elevator Company | Non-linear stiffness roller assembly |
| CN203306875U (en) * | 2013-07-03 | 2013-11-27 | 森赫电梯股份有限公司 | Villa elevator rolling guide shoe of knapsack car frame structure |
| CN204607320U (en) * | 2015-05-05 | 2015-09-02 | 苏州威尔森电梯有限公司 | Backpack frame elevator rolling guide shoe and lead boots assembly |
| CN205274944U (en) * | 2015-12-17 | 2016-06-01 | 欧姆尼机电科技（昆山）有限公司 | Rubber coating wheel |
| CN209872056U (en) * | 2019-04-18 | 2019-12-31 | 宁波奥德普电梯部件有限公司 | Unilateral roller guide shoe of partial load type elevator |
-
2020
- 2020-08-06 CN CN202010785588.1A patent/CN111891877B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10291750A (en) * | 1997-04-16 | 1998-11-04 | Mitsubishi Electric Corp | Elevator device |
| US6482140B1 (en) * | 1999-12-08 | 2002-11-19 | Tashico Corporation | Roller and method of producing the same |
| CN201068358Y (en) * | 2007-05-25 | 2008-06-04 | 苏州江南嘉捷电梯股份有限公司 | Elevator rolling wheel guiding boot |
| WO2012166097A1 (en) * | 2011-05-27 | 2012-12-06 | Otis Elevator Company | Non-linear stiffness roller assembly |
| CN203306875U (en) * | 2013-07-03 | 2013-11-27 | 森赫电梯股份有限公司 | Villa elevator rolling guide shoe of knapsack car frame structure |
| CN204607320U (en) * | 2015-05-05 | 2015-09-02 | 苏州威尔森电梯有限公司 | Backpack frame elevator rolling guide shoe and lead boots assembly |
| CN205274944U (en) * | 2015-12-17 | 2016-06-01 | 欧姆尼机电科技（昆山）有限公司 | Rubber coating wheel |
| CN209872056U (en) * | 2019-04-18 | 2019-12-31 | 宁波奥德普电梯部件有限公司 | Unilateral roller guide shoe of partial load type elevator |
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